<template>
    <!-- 总容器 -->
    <div class="wrapper">
        <!-- header部分 -->
        <header>
            <div class="icon-location-box">
                <div class="icon-location"></div>
            </div>
            <div class="location-text">沈阳市规划大厦<i class="fa fa-caret-down"></i></div>
        </header>

        <!-- search部分 -->
        <!-- 
                搜索框部分（此块与search-fixed-top块宽度高度一致，用于当
                search-fixed-top块固定后，挡住下面块不要窜上去）
            -->
        <div class="search">
            <!-- 当滚动条超过上面的定位块时，search-fixed-top块变成固定在顶部。 -->
            <div class="search-fixed-top" ref="fixedBox">
                <!-- 搜索框部分中间的白框 -->
                <div class="search-box">
                    <i class="fa fa-search"></i>搜索饿了么商家、商品名称
                </div>
            </div>
        </div>

        <!-- 点餐分类部分 -->
        <ul class="foodtype">
            <li @click="toBusinessList(1)">
                <img src="../assets/dcfl01.png">
                <p>美食</p>
            </li>
            <li @click="toBusinessList(2)">
                <img src="../assets/dcfl02.png">
                <p>早餐</p>
            </li>
            <li @click="toBusinessList(3)">
                <img src="../assets/dcfl03.png">
                <p>跑腿代购</p>
            </li>
            <li @click="toBusinessList(4)">
                <img src="../assets/dcfl04.png">
                <p>汉堡披萨</p>
            </li>
            <li @click="toBusinessList(5)">
                <img src="../assets/dcfl05.png">
                <p>甜品饮品</p>
            </li>
            <li @click="toBusinessList(6)">
                <img src="../assets/dcfl06.png">
                <p>速食简餐</p>
            </li>
            <li @click="toBusinessList(7)">
                <img src="../assets/dcfl07.png">
                <p>地方小吃</p>
            </li>
            <li @click="toBusinessList(8)">
                <img src="../assets/dcfl08.png">
                <p>米粉面馆</p>
            </li>
            <li @click="toBusinessList(9)">
                <img src="../assets/dcfl09.png">
                <p>包子粥铺</p>
            </li>
            <li @click="toBusinessList(10)">
                <img src="../assets/dcfl10.png">
                <p>炸鸡炸串</p>
            </li>
        </ul>

        <!-- 横幅广告部分 -->
        <div class="banner">
            <h3 style="text-indent:2em;">品质套餐</h3>
            <p style="text-indent:2em;">搭配齐全吃得好</p>
            <a style="text-indent:2em;">立即抢购 &gt;</a>
        </div>

        <!-- 超级会员部分 -->
        <div class="supermember">
            <div class="left">
                <img src="../assets/super_member.png">
                <h3 style="text-indent:2em;">超级会员</h3>
                <p style="text-indent:2em;">&#8226; 每月享超值权益</p>
            </div>
            <div class="right" style="text-indent:2em;">
                立即开通 &gt;
            </div>
        </div>

        <!-- 推荐商家部分 -->
        <div class="recommend">
            <div class="recommend-line"></div>
            <p style="text-indent:2em;">推荐商家</p>
            <div class="recommend-line"></div>
        </div>

        <!-- 推荐方式部分 -->
        <ul class="recommendtype">
            <li style="text-indent:2em;">综合排序<i class="fa fa-caret-down"></i></li>
            <li style="text-indent:2em;">距离最近</li>
            <li style="text-indent:2em;">销量最高</li>
            <li style="text-indent:2em;">筛选<i class="fa fa-filter"></i></li>
        </ul>

        <!-- 推荐商家列表部分 -->
        <ul class="business">
            <li>
                <img src="../assets/sj01.png">
                <div class="business-info">
                    <div class="business-info-h">
                        <h3 style="text-indent:2em;">万家饺子（软件园E18店）</h3>
                        <div class="business-info-like">&#8226;</div>
                    </div>
                    <div class="business-info-star">
                        <div class="business-info-star-left">
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <p style="text-indent:2em;">4.9 月售345单</p>
                        </div>
                        <div class="business-info-star-right">
                            蜂鸟专送
                        </div>
                    </div>
                    <div class="business-info-delivery">
                        <p style="text-indent:2em;">&#165;15起送 | &#165;3配送</p>
                        <p style="text-indent:2em;">3.22km | 30分钟</p>
                    </div>
                    <div class="business-info-explain">
                        <div>各种饺子</div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">新</div>
                            <p style="text-indent:2em;">饿了么新用户首单立减9元</p>
                        </div>
                        <div class="business-info-promotion-right">
                            <p style="text-indent:2em;">2个活动</p>
                            <i class="fa fa-caret-down"></i>
                        </div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon" style="background-color: #F1884F;">特</div>
                            <p style="text-indent:2em;">特价商品5元起</p>
                        </div>
                    </div>
                </div>
            </li>
            <li>
                <img src="../assets/sj02.png">
                <div class="business-info">
                    <div class="business-info-h">
                        <h3 style="text-indent:2em;">小锅饭豆腐馆（全运店）</h3>
                        <div class="business-info-like">&#8226;</div>
                    </div>
                    <div class="business-info-star">
                        <div class="business-info-star-left">
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <p style="text-indent:2em;">4.9 月售345单</p>
                        </div>
                        <div class="business-info-star-right">
                            蜂鸟专送
                        </div>
                    </div>
                    <div class="business-info-delivery">
                        <p style="text-indent:2em;">&#165;15起送 | &#165;3配送</p>
                        <p style="text-indent:2em;">3.22km | 30分钟</p>
                    </div>
                    <div class="business-info-explain">
                        <div>各种饺子</div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">新</div>
                            <p style="text-indent:2em;">饿了么新用户首单立减9元</p>
                        </div>
                        <div class="business-info-promotion-right">
                            <p style="text-indent:2em;">2个活动</p>
                            <i class="fa fa-caret-down"></i>
                        </div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">特</div>
                            <p style="text-indent:2em;">特价商品5元起</p>
                        </div>
                    </div>
                </div>
            </li>
            <li>
                <img src="../assets/sj03.png">
                <div class="business-info">
                    <div class="business-info-h">
                        <h3 style="text-indent:2em;">麦当劳麦乐送（全运路店）</h3>
                        <div class="business-info-like">&#8226;</div>
                    </div>
                    <div class="business-info-star">
                        <div class="business-info-star-left">
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <p style="text-indent:2em;">4.9 月售345单</p>
                        </div>
                        <div class="business-info-star-right">
                            蜂鸟专送
                        </div>
                    </div>
                    <div class="business-info-delivery">
                        <p style="text-indent:2em;">&#165;15起送 | &#165;3配送</p>
                        <p style="text-indent:2em;">3.22km | 30分钟</p>
                    </div>
                    <div class="business-info-explain">
                        <div>各种饺子</div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">新</div>
                            <p style="text-indent:2em;">饿了么新用户首单立减9元</p>
                        </div>
                        <div class="business-info-promotion-right">
                            <p style="text-indent:2em;">2个活动</p>
                            <i class="fa fa-caret-down"></i>
                        </div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">特</div>
                            <p style="text-indent:2em;">特价商品5元起</p>
                        </div>
                    </div>
                </div>
            </li>
            <li>
                <img src="../assets/sj04.png">
                <div class="business-info">
                    <div class="business-info-h">
                        <h3 style="text-indent:2em;">米村拌饭（浑南店）</h3>
                        <div class="business-info-like">&#8226;</div>
                    </div>
                    <div class="business-info-star">
                        <div class="business-info-star-left">
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <p style="text-indent:2em;">4.9 月售345单</p>
                        </div>
                        <div class="business-info-star-right">
                            蜂鸟专送
                        </div>
                    </div>
                    <div class="business-info-delivery">
                        <p style="text-indent:2em;">&#165;15起送 | &#165;3配送</p>
                        <p style="text-indent:2em;">3.22km | 30分钟</p>
                    </div>
                    <div class="business-info-explain">
                        <div>各种饺子</div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">新</div>
                            <p style="text-indent:2em;">饿了么新用户首单立减9元</p>
                        </div>
                        <div class="business-info-promotion-right">
                            <p style="text-indent:2em;">2个活动</p>
                            <i class="fa fa-caret-down"></i>
                        </div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">特</div>
                            <p style="text-indent:2em;">特价商品5元起</p>
                        </div>
                    </div>
                </div>
            </li>
            <li>
                <img src="../assets/sj05.png">
                <div class="business-info">
                    <div class="business-info-h">
                        <h3 style="text-indent:2em;">申记串道（中海康城店）</h3>
                        <div class="business-info-like">&#8226;</div>
                    </div>
                    <div class="business-info-star">
                        <div class="business-info-star-left">
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <p style="text-indent:2em;">4.9 月售345单</p>
                        </div>
                        <div class="business-info-star-right">
                            蜂鸟专送
                        </div>
                    </div>
                    <div class="business-info-delivery">
                        <p style="text-indent:2em;">&#165;15起送 | &#165;3配送</p>
                        <p style="text-indent:2em;">3.22km | 30分钟</p>
                    </div>
                    <div class="business-info-explain">
                        <div>各种饺子</div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">新</div>
                            <p style="text-indent:2em;">饿了么新用户首单立减9元</p>
                        </div>
                        <div class="business-info-promotion-right">
                            <p style="text-indent:2em;">2个活动</p>
                            <i class="fa fa-caret-down"></i>
                        </div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">特</div>
                            <p style="text-indent:2em;">特价商品5元起</p>
                        </div>
                    </div>
                </div>
            </li>
        </ul>

        <!-- 底部菜单部分 -->
        <Footer></Footer>
    </div>
</template>

<script>
// 引入Vue和相关依赖
import Footer from '../components/Footer.vue';
export default {
    name: 'Index',
    mounted() {
       
            document.onscroll =  ()=> {
                // 获取滚动条的高度
                // document.documentElement.scrollTop 在 Chrome 和 Firefox 中有效
                // document.body.scrollTop 在 IE 和旧版浏览器中有效
                let s1 = document.documentElement.scrollTop;
                let s2 = document.body.scrollTop;
                let scroll =s1==0? s2 : s1;

                // 获取页面的总高度
                let width = document.documentElement.clientWidth;
                //获取顶部固定块
                let search = this.$refs.fixedBox;

                if (scroll > width * 0.12) {
                    search.style.position = 'fixed';
                    search.style.left = '0';
                    search.style.top = '0';
                }
                else {
                    search.style.position = 'static';
                }


            }

    },
    unmounted() {
        // 清除滚动事件监听
        document.onscroll = null;
    },
    components: {
        Footer
    },
    methods: {
        // 跳转到商家列表页面
        toBusinessList(orderTypeId) {
            this.$router.push({path: '/businessList', query: {orderTypeId: orderTypeId}});
        }
    }
}
</script>

<style scoped>
/****************** 总容器 ******************/
.wrapper {
    width: 100%;
    height: 100%;
}

/****************** header ******************/
.wrapper header {
    width: 100%;
    height: 12vw;
    background-color: #0097FF;

    display: flex;
    align-items: center;
}

.wrapper header .icon-location-box {
    width: 3.5vw;
    height: 3.5vw;
    margin: 0 1vw 0 3vw;
}

.wrapper header .location-text {
    font-size: 4.5vw;
    font-weight: 700;
    color: #fff;
}

.wrapper header .location-text .fa-caret-down {
    margin-left: 1vw;
}

/****************** search ******************/
.wrapper .search {
    width: 100%;
    height: 13vw;
}

.wrapper .search .search-fixed-top {
    width: 100%;
    height: 13vw;
    background-color: #0097FF;
    display: flex;
    justify-content: center;
    align-items: center;
}

.wrapper .search .search-fixed-top .search-box {
    width: 90%;
    height: 9vw;
    background-color: #fff;
    border-radius: 2px;

    display: flex;
    justify-content: center;
    align-items: center;

    font-size: 3.5vw;
    color: #AEAEAE;
    font-family: "宋体";
    /*此样式是让文本选中状态无效*/
    user-select: none;
}

.wrapper .search .search-fixed-top .search-box .fa-search {
    margin-right: 1vw;
}

/****************** 点餐分类部分 ******************/
.wrapper .foodtype {
    width: 100%;
    height: 48vw;

    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    /*要使用align-content。10个子元素将自动换行为两行，而且两行作为一个整体垂直居中*/
    align-content: center;
}

.wrapper .foodtype li {
    /*一共10个子元素，通过计算，子元素宽度在16.7 ~ 20 之间，才能保证换两行*/
    width: 18vw;
    height: 20vw;

    display: flex;
    /*弹性盒子主轴方向设为column，然后仍然是垂直水平方向居中*/
    flex-direction: column;
    justify-content: center;
    align-items: center;

    user-select: none;
    cursor: pointer;
}

.wrapper .foodtype li img {
    width: 12vw;
    /*视频讲解时高度设置为12vw，实际上设置为10.3vw更佳*/
    height: 10.3vw;
}

.wrapper .foodtype li p {
    font-size: 3.2vw;
    color: #666;
}

/****************** 横幅广告部分 ******************/
.wrapper .banner {
    /**
	* 设置容器宽度95%，然后水平居中，这样两边留白; 
	* 这里不能用padding，因为背景图片也会覆盖padding
	*/
    width: 95%;
    margin: 0 auto;
    height: 29vw;

    /*此三个样式组合，可以保证背景图片充满整个容器*/
    background-image: url(../assets/index_banner.png);
    background-repeat: no-repeat;
    background-size: cover;

    box-sizing: border-box;
    padding: 2vw 6vw;
}

.wrapper .banner h3 {
    font-size: 4.2vw;
    margin-bottom: 1.2vw;
}

.wrapper .banner p {
    font-size: 3.4vw;
    color: #666;
    margin-bottom: 2.4vw;
}

.wrapper .banner a {
    font-size: 3vw;
    color: #C79060;
    font-weight: 700;
}

/****************** 超级会员部分 ******************/
.wrapper .supermember {
    /*这里也设置容器宽度95%，不能用padding，因为背景色也会充满padding*/
    width: 95%;
    margin: 0 auto;
    height: 11.5vw;
    background-color: #FEEDC1;
    margin-top: 1.3vw;
    border-radius: 2px;
    color: #644F1B;

    display: flex;
    justify-content: space-between;
    align-items: center;
}

.wrapper .supermember .left {
    display: flex;
    align-items: center;
    margin-left: 4vw;
    user-select: none;
}

.wrapper .supermember .left img {
    width: 6vw;
    height: 6vw;
    margin-right: 2vw;
}

.wrapper .supermember .left h3 {
    font-size: 4vw;
    margin-right: 2vw;
}

.wrapper .supermember .left p {
    font-size: 3vw;
}

.wrapper .supermember .right {
    font-size: 3vw;
    margin-right: 4vw;
    cursor: pointer;
}

/****************** 推荐商家部分 ******************/
.wrapper .recommend {
    width: 100%;
    height: 14vw;
    display: flex;
    justify-content: center;
    align-items: center;
}

.wrapper .recommend .recommend-line {
    width: 6vw;
    height: 0.2vw;
    background-color: #888;
}

.wrapper .recommend p {
    font-size: 4vw;
    margin: 0 4vw;
}

/****************** 推荐方式部分 ******************/
.wrapper .recommendtype {
    width: 100%;
    height: 5vw;
    margin-bottom: 5vw;

    display: flex;
    justify-content: space-around;
    align-items: center;
}

.wrapper .recommendtype li {
    font-size: 3.5vw;
    color: #555;
}

/****************** 推荐商家列表部分 ******************/
.wrapper .business {
    width: 100%;
    margin-bottom: 14vw;
}

.wrapper .business li {
    width: 100%;
    box-sizing: border-box;
    padding: 2.5vw;
    user-select: none;
    border-bottom: solid 1px #DDD;

    display: flex;
}

.wrapper .business li img {
    width: 18vw;
    height: 18vw;
}

.wrapper .business li .business-info {
    width: 100%;
    box-sizing: border-box;
    padding-left: 3vw;
}

.wrapper .business li .business-info .business-info-h {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2vw;
}

.wrapper .business li .business-info .business-info-h h3 {
    font-size: 4vw;
    color: #333;
}

.wrapper .business li .business-info .business-info-h .business-info-like {
    width: 1.6vw;
    height: 3.4vw;
    background-color: #666;
    color: #fff;
    font-size: 4vw;
    margin-right: 4vw;

    display: flex;
    justify-content: center;
    align-items: center;
}

.wrapper .business li .business-info .business-info-star {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2vw;
    font-size: 3.1vw;
}

.wrapper .business li .business-info .business-info-star .business-info-star-left {
    display: flex;
    align-items: center;
}

.wrapper .business li .business-info .business-info-star .business-info-star-left .fa-star {
    color: #FEC80E;
    margin-right: 0.5vw;
}

.wrapper .business li .business-info .business-info-star .business-info-star-left p {
    color: #666;
    margin-left: 1vw;
}

.wrapper .business li .business-info .business-info-star .business-info-star-right {
    background-color: #0097FF;
    color: #fff;
    font-size: 2.4vw;
    border-radius: 2px;
    padding: 0 0.6vw;
}

.wrapper .business li .business-info .business-info-delivery {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2vw;

    color: #666;
    font-size: 3.1vw;
}

.wrapper .business li .business-info .business-info-explain {
    display: flex;
    align-items: center;
    margin-bottom: 3vw;
}

.wrapper .business li .business-info .business-info-explain div {
    border: solid 1px #DDD;
    font-size: 2.8vw;
    color: #666;
    border-radius: 3px;
    padding: 0 0.1vw;
}

.wrapper .business li .business-info .business-info-promotion {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.8vw;
}

.wrapper .business li .business-info .business-info-promotion .business-info-promotion-left {
    display: flex;
    align-items: center;
}

.wrapper .business li .business-info .business-info-promotion .business-info-promotion-left .business-info-promotion-left-incon {
    width: 4vw;
    height: 4vw;
    background-color: #70BC46;
    border-radius: 3px;
    font-size: 3vw;
    color: #fff;

    display: flex;
    justify-content: center;
    align-items: center;
}

.wrapper .business li .business-info .business-info-promotion .business-info-promotion-left p {
    color: #666;
    font-size: 3vw;
    margin-left: 2vw;
}

.wrapper .business li .business-info .business-info-promotion .business-info-promotion-right {
    display: flex;
    align-items: center;
    font-size: 2.5vw;
    color: #999;
}

.wrapper .business li .business-info .business-info-promotion .business-info-promotion-right p {
    margin-right: 2vw;
}

</style>